It is recommended to send the sacrificial animal to the Haram for one who does not intend to go there himself; It is reommended to garland it and to make the garland, but the one who sends it does not enter a state of Ihram, and nothing is forbidden to him because of that

Abd al-Rahman b. al-Qasim reported on the authority of his father that he heard 'A'isha (Allah be pleased with her) saying: I used to weave garlands for the sacrificial animals of Allah's Messenger (ﷺ) with these hands of mine, but he (Allah's Apostle) neither avoided anything nor gave up anything (which a Muhrim should avoid or give up).